A 267 KB RAR containing a Vietnamese PDF titled with the term for the power trigger or power-on circuit. It works as a tutorial explaining how a notebook board wakes from the power button through the EC and into the main rails, rather than a model-specific schematic. Expect coverage of standby voltage, the power switch signal, EC outputs and enable lines to the regulators. It helps when diagnosing boards that will not respond to the power button; verify each point on the real schematic of your machine.
The button opens the matching file on RM Schematics, or a source page if it is not catalogued there yet. The original attachment is from @generalschematics. Enginerys does not host this file.
How to open a .rar file
Compressed archive — the usual wrapper for a schematic + boardview pair or a BIOS + EC set.